US5957685A - Twister for ligature wire - Google Patents

Twister for ligature wire Download PDF

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Publication number
US5957685A
US5957685A US09/003,639 US363998A US5957685A US 5957685 A US5957685 A US 5957685A US 363998 A US363998 A US 363998A US 5957685 A US5957685 A US 5957685A
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US
United States
Prior art keywords
cylinder
guide hole
nipping
wire
locking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US09/003,639
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English (en)
Inventor
Yoneo Kanno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HIGURASHI MITSUO (PARTIAL)
KAZUYUKI HIGURASHI (PARTIAL INTEREST)
KAZUYUKI HIGURASHI PARTIAL INT
Original Assignee
HIGURASHI MITSUO (PARTIAL)
KAZUYUKI HIGURASHI (PARTIAL INTEREST)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HIGURASHI MITSUO (PARTIAL), KAZUYUKI HIGURASHI (PARTIAL INTEREST) filed Critical HIGURASHI MITSUO (PARTIAL)
Assigned to HIGURASHI, MITSUO (PARTIAL) reassignment HIGURASHI, MITSUO (PARTIAL) ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KANNO, YONEO
Assigned to KAZUYUKI HIGURASHI (PARTIAL INTEREST) reassignment KAZUYUKI HIGURASHI (PARTIAL INTEREST) ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KANNO, YONEO
Application granted granted Critical
Publication of US5957685A publication Critical patent/US5957685A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/02—Tools for manipulating or working with an orthodontic appliance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/02—Tools for manipulating or working with an orthodontic appliance
    • A61C7/026—Tools for manipulating or working with an orthodontic appliance for twisting orthodontic ligature wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F15/00—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire
    • B21F15/02—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire
    • B21F15/04—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire without additional connecting elements or material, e.g. by twisting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F7/00—Twisting wire; Twisting wire together

Definitions

  • a conventional twister for orthodontic ligature wires which comprises a pair of nipping rods pivotally mounted to each other to be in the form of pinchers and allows one hand to grasp a gripping portion of the twister to enable a nipping portion on a tip end of the twister to nip a wire near a bent portion of the wire to twist the wire in the mouth.
  • twister for binding of a short wire which is made in the form of ever-sharp pencil and allows a preform wire to be inserted axially therein for nipping, and bound through rotation of a gripping portion thereof.
  • the conventional twister described above has a drawback in that it is difficult due to construction to perform twisting of a wire in the mouth while rotating the utensil with one hand in a state, in which the wire is nipped, and to clamp the wire with certainty.
  • the twister in the form of a continuously sharp pencil for binding of a short wire cannot be used for binding of a long wire due to the incapability of inserting a long wire thereinto and has a complex wire locking mechanism to take time in manufacture.
  • the present invention solves the above-described problems of conventional twisters and provides a twister which facilitates performing a twisting manipulation of a ligature wire with one hand and enables clamping the wire with certainty and which is simple in construction.
  • a twister for orthodontic ligature wires comprises a nipping cylinder having a gradually tapering forward portion and provided at a tip end thereof with a wire insertion port, the nipping cylinder being internally formed with a guide hole, which allows the wire to pass therethrough and is provided at an inner periphery of a tip end thereof with ridges, a gripping cylinder connected to a rear end of the nipping cylinder, a locking rod mounted inside the nipping cylinder and a forward portion of the gripping cylinder and having a tip end thereof engageable with the ridges, and a manual button pivotally mounted to one side of the gripping cylinder and having an end of a shaft portion thereof pivotally mounted to a rear end of the locking rod, which end can be fixed in a state, in which the tip end of the locking rod is engaged with and disengaged from the ridges.
  • the nipping cylinder has a gradually tapering forward portion and is internally formed with a guide hole, which allows a wire to be inserted axially therethrough, which is formed at a tip end thereof with an insertion port, which is provided with a compartment pin for inhibition of twisting, and a locking mechanism is mounted in the nipping cylinder for allowing engagement and disengagement of the wire in the guide hole.
  • the nipping cylinder has a gradually tapering forward portion, and is provided with an axially extending guide hole for passing of the wire therethrough, the insertion port is formed at a tip end of the guide hole and has its one side extended to provide an engagement piece for inhibition of twisting, and the locking mechanism is mounted in the nipping cylinder for allowing engagement and disengagement of the wire in the guide hole.
  • the locking mechanism comprises ridges provided on a rear end of the guide hole in the gripping cylinder, a groove provided on a side opposite to the ridges, a locking rod which is mounted to extend in the nipping cylinder and the gripping cylinder and a tip end of which is pivotally mounted in the groove, and a manual button which is mounted to the gripping cylinder and a shaft portion of which is pivotally mounted at an end thereof to a rear end of the locking rod, the manual button being enabled to be fixed in a state, in which a forward portion of the locking rod is pressed against and separated from the ridges.
  • the locking mechanism may comprise a locking hole provided on one side of the nipping cylinder to lead to the guide hole, and a circular-shaped locking piece mounted eccentrically and pivotally in the locking hole to allow a peripheral portion thereof to partly appear and disappear in the guide hole to engage with and disengage from the wire in the guide hole, and a manual piece provided on one side of the locking piece to extend from the locking hole.
  • the locking mechanism may comprise a button hole provided in place on the nipping cylinder to be perpendicular to the guide hole, an engagement button provided in the button hole to allow the wire in the guide hole to bend and engage in the button hole, and a release button capable of disengaging the wire from said button hole.
  • the locking mechanism may comprise a circular-shaped locking piece rotatably mounted at the rear end of the nipping cylinder within the gripping cylinder and provided therein with a through hole, which allows communication to the guide hole in a linear fashion, a manual piece projectingly provided on one side of the locking piece, a manual ring fitted on an outer periphery of the gripping cylinder and engaged with the manual piece, the manual ring being adapted to move forward and rearward to turn the locking piece to enable the wire inserted through the guide hole and the through hole to bend and engage, and a stopper provided on one side of the nipping cylinder to be engageable with a tip end of the manual ring so that the locking piece can maintain a wire locking condition.
  • the locking mechanism comprises a recess provided in place on the guide hole, a groove provided on a side opposite to the recess to lead outside the nipping cylinder, a locking rod pivotally mounted at a forward portion of the gripping cylinder, an engagement piece provided at a tip end of the locking rod to be disposed in the groove to enable entering into the recess, and a push button pivotally mounted at a tip end thereof to a rear end of the locking rod and having a head thereof projecting outside the gripping cylinder, and wherein manipulation of the push button allows the wire to engage and disengage between the recess and the engagement piece and allows the locking rod to be maintained in an engaged state.
  • the guide hole extends along a central axis of the nipping cylinder to pass the ligature wire therethrough
  • the insertion port is formed at the tip end of the guide hole
  • the engagement piece is provided on the extension on one side of the insertion port for inhibition of twisting
  • the locking mechanism is mounted on the periphery of the nipping cylinder to enable the wire in the guide hole to engage and disengage
  • the gripping cylinder is connected to the rear end of the nipping cylinder
  • a groove is provided on one sides of the nipping cylinder and the gripping cylinder to allow the wire to be charged into the guide hole from laterally.
  • a twister for orthodontic ligature wires has both ends of a lengthy wire extended in a nipping cylinder and a gripping cylinder, and comprises the nipping cylinder having a gradually tapering forward portion and provided at a tip end thereof with a wire insertion port, the nipping cylinder being internally formed with a guide hole, which allows the wire to pass therethrough and is provided at an inner periphery of a tip end thereof with ridges, the gripping cylinder connected to a rear end of the nipping cylinder, a locking rod mounted inside the nipping cylinder and a forward portion of the gripping cylinder and having a tip end thereof engageable with the ridges, and a manual button pivotally mounted to one side of the gripping cylinder and having an end of a shaft portion thereof pivotally mounted to a rear end of the locking rod, which end can be fixed in a predetermined state, in which the tip end of the locking rod is engaged with and disengaged from the ridges.
  • the nipping cylinder has a gradually tapering forward portion, the guide hole for passing of the wire therethrough, is formed axially in the nipping cylinder, the insertion port is formed at a tip end of the guide hole and provided with a compartment pin for inhibition of twisting, and the locking mechanism is mounted in the nipping cylinder for allowing engagement and disengagement of the wire in the guide hole.
  • an engagement piece for inhibition of twisting may be provided on an extension of the insertion port one side thereof.
  • the locking mechanism comprises ridges provided on a rear end of the guide hole in the nipping cylinder, a groove provided on a side opposite to the ridges, a locking rod which is mounted to extend in the nipping cylinder and the gripping cylinder and a tip end of which is pivotally mounted in the groove, and a manual button which is mounted to the gripping cylinder and a shaft portion of which is pivotally mounted at an end thereof to a rear end of the locking rod, the manual button being enabled to be fixed in a state, in which a forward portion of the locking rod is pressed against and separated from the ridges.
  • a circular-shaped lock piece may be provided at the rear end of the nipping cylinder within the gripping cylinder and provided therein with a through hole, which allows communication to the guide hole in a linear fashion, so that turning the lock piece causes restraining the wire.
  • the locking mechanism may be constructed to allow bending and engaging of the wire in the guide hole with a tip end of a push button mounted in the nipping cylinder.
  • the locking mechanism may be constructed to allow a push button to operate the locking piece pivotally mounted in the gripping cylinder to effect bending and engagement of the wire in the guide hole with an engagement piece provided at a tip end of the locking rod.
  • a groove is provided on one sides of the nipping cylinder and the gripping cylinder to allow the wire to be charged into the guide hole from laterally.
  • FIG. 1 is a side cross sectional view of a first embodiment of the invention
  • FIG. 2 is a side cross sectional view of the first embodiment in use
  • FIG. 3 is a schematic view illustrating a twisted condition
  • FIG. 4 is a side cross sectional view of a second embodiment of the invention.
  • FIG. 5 is a side cross sectional view of the second embodiment in use
  • FIG. 6 is a schematic view illustrating a twisted condition
  • FIG. 7 is a side cross sectional view of a third embodiment of the invention.
  • FIG. 8 is a side cross sectional view of the third embodiment in use.
  • FIG. 9 is a schematic view illustrating a twisted condition
  • FIG. 10 is a side cross sectional view of a fourth embodiment of the invention.
  • FIG. 11 is a side cross sectional view of the fourth embodiment in use.
  • the reference numeral 10 designates a nipping cylinder, a forward portion of which tapers gradually, a tip end of which is provided with a wire insertion port 11, and inside which a guide hole 12 is formed to pass wires therethrough, and annular ridges 13 are formed on an inner periphery of a tip end of the guide hole 12.
  • the nipping cylinder is connected at its rear end to an elongated gripping cylinder 14.
  • Reference numeral 15 designates a slide-proof band mounted outside of the gripping cylinder 14.
  • Reference numeral 16 designates a wire locking mechanism having a locking rod 17, a tip end of which is sharpened at an acute angle to match the annular ridges 13 in the guide hole 12 and a rear end of which is pivotally mounted to an end of a shaft portion of a manual button 18 which in turn is pivotally mounted in the gripping cylinder 14 to be rotatable.
  • the locking rod 17 is moved a predetermined distance forward and rearward to allow a tip end of the locking rod to engage with or disengage from the annular ridges 13.
  • Reference numeral 20 designates a stopper form of a leaf spring, which is mounted below the locking rod in the gripping cylinder 14 to resiliently support a lower end of the shaft portion of the manual button 18 and a tip end of which is formed with a bent portion 21 adapted to engage with or disengage from the lower end of the shaft portion of the manual button 18 in a state, in which the operating button 18 turns forward and rearward.
  • a bent portion 21 adapted to engage with or disengage from the lower end of the shaft portion of the manual button 18 in a state, in which the operating button 18 turns forward and rearward.
  • both ends of the ligature wire W are inserted into the guide hole 12 through the insertion port 11 to extend through the gripping cylinder 14.
  • pushing the head 19 of the manual button 18 rearward with a finger moves the locking rod 17 forward, so that the ligature wire W is interposed between the locking rod 17 and the annular ridges 13 to be locked.
  • an inverted U-shaped portion of the wire W nips brackets B attached to a tooth or teeth being subjected to orthodontic treatment, and then the gripping cylinder 14 is rotated to twist the wire W, so that an arch wire A stretched between teeth is bound to the brackets B.
  • pushing the manual button 18 forward moves the locking rod 17 rearward to unlock the wire W.
  • an insertion port 11 which is provided with a compartment pin 25 for inhibition of twisting, and mounted in the nipping cylinder is a locking mechanism 30 capable of having the wire engaged and disengaged in the guide hole.
  • the locking mechanism 30 comprises ridges 31 formed over an inclined surface where a rear end of a guide hole 12 of a nipping cylinder 10 is inclined downwardly, the ridges 31 being oriented perpendicular to the guide hole 12, and a groove 32 provided on a side opposite to the ridges.
  • Reference numeral 33 designates a locking rod provided to extend in the nipping cylinder and the gripping cylinder, and formed at its forward portion with a pressing portion 34, which can contact with the ridges 31 and a tip end of which is pivotally mounted in a groove 32 to allow the pressing portion 34 to abut against the ridges 31 when turned.
  • Pivotally mounted to a rear end of the locking rod 33 is a shaft end of a push button 35, a head of which protrudes outside the gripping cylinder.
  • Reference numeral 36 designates a leaf spring provided to constantly bias the rear end of the locking rod 33 upward.
  • Reference numeral 37 designates a stopper mounted on a forward portion of the push button 35 in the gripping cylinder such that its vertically bending spring piece is latched at its rear end by the forward portion of a shaft of the push button 35 to resiliently support the push button 35 rearward.
  • both ends of the ligature wire W are passed over either side of the compartment pin 25 as shown in FIG. 6 to be inserted into the guide hole 12 through the insertion port 11 to extend in the gripping cylinder.
  • a notch 38 provided on the shaft portion of the push button 35 engages with a peripheral edge of a through hole 39 on the gripping cylinder and is biased rearward by the stopper 37, so that the wire interposed between the ridges 31 and the pressing portion 34 can be maintained in a locked position.
  • pushing the push button 35 forward disengages the notch 38 from the peripheral edge of the through hole 39 and turns the locking rod 33 upward to unlock the wire W.
  • the inverted U-shaped portion of the ligature wire W are made as shown in FIG. 9 to bridge over and engage with the both engagement grooves 42, 42 on the engagement piece 40, and both ends of the wire are inserted into the guide hole 12 through the insertion port 11 to extend in the gripping cylinder 14 to allow a twisting work in a locked condition.
  • a fourth embodiment is the same in terms of constitution as the third embodiment except a wire locking mechanism, and so only differences in constitution will be described hereinbelow.
  • a locking mechanism 50 comprises a locking hole 51 formed on one side of a nipping cylinder 10 to lead to a guide hole 12, and a locking piece 52 eccentrically mounted at a pivot 53 in the locking hole 51 in such a manner to allow its lower portion to appear and disappear in the guide hole 12.
  • the locking piece 52 is provided at a top end thereof with a manual piece 54 and on a periphery thereof with an arcuate engagement hole 55.
  • a ball 58 biased by a spring 57 received in a recess 56 provided on one side of the locking hole 51 can be fitted into the engagement hole 55.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US09/003,639 1997-01-16 1998-01-07 Twister for ligature wire Expired - Fee Related US5957685A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9-017934 1997-01-16
JP1793497 1997-01-16
JP36326097A JPH10258069A (ja) 1997-01-16 1997-12-16 リガチャワイヤ用ツイスター

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JP (1) JPH10258069A (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7104287B1 (en) 2005-07-26 2006-09-12 Thomas Schmitz Wire-untwisting tool
US20090017420A1 (en) * 2006-10-04 2009-01-15 Saadallah Jabri Gingival Cord Applicator for Dental Crown Preparation
US20110017342A1 (en) * 2009-07-24 2011-01-27 Tyco Electronics Corporation Wire untwisting tool
CN103800084A (zh) * 2014-02-26 2014-05-21 青岛市妇女儿童医院 一种正畸结扎丝成型器
KR20200028225A (ko) * 2018-09-06 2020-03-16 전북대학교산학협력단 치아 교정용 결찰기구
CN113414316A (zh) * 2021-06-28 2021-09-21 成都飞机工业（集团）有限责任公司 一种便携式防错型电动打保险装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015136567A (ja) * 2014-01-24 2015-07-30 佩祺 李 歯科矯正用自動結紮処理システム
CN111451622B (zh) * 2020-04-17 2021-03-16 西安交通大学 一种基于金属丝微纳加工技术的重频x箍缩负载的设计方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425871A (en) * 1945-05-08 1947-08-19 Herman H Eichorst Safety wire twisting apparatus
US2682063A (en) * 1951-06-30 1954-06-29 Bell Telephone Labor Inc Wiring tool
US3163187A (en) * 1962-06-01 1964-12-29 Gen Electric Tool for tightening wires and breaking the ends thereof
US3273605A (en) * 1963-07-08 1966-09-20 Ferrarn Ind Staple twister
US3420280A (en) * 1965-06-04 1969-01-07 Chardon Metal Products Co Wire twisting device
US3596357A (en) * 1968-11-14 1971-08-03 Takeshi Matsumoto Method for performing orthodontic ligation of the bands and the archwire applied to a series of teeth, and an orthodontic ligation brace and a preshaped ligation wire piece for use in said method
US3759302A (en) * 1971-08-19 1973-09-18 Nat Res Dev Wire fixing device
US5004020A (en) * 1988-01-21 1991-04-02 Newtech Products, Inc. Wire twisting apparatus
US5125830A (en) * 1988-05-19 1992-06-30 Peter Reinhard Apparatus for affixing a ligature to braces of teeth

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425871A (en) * 1945-05-08 1947-08-19 Herman H Eichorst Safety wire twisting apparatus
US2682063A (en) * 1951-06-30 1954-06-29 Bell Telephone Labor Inc Wiring tool
US3163187A (en) * 1962-06-01 1964-12-29 Gen Electric Tool for tightening wires and breaking the ends thereof
US3273605A (en) * 1963-07-08 1966-09-20 Ferrarn Ind Staple twister
US3420280A (en) * 1965-06-04 1969-01-07 Chardon Metal Products Co Wire twisting device
US3596357A (en) * 1968-11-14 1971-08-03 Takeshi Matsumoto Method for performing orthodontic ligation of the bands and the archwire applied to a series of teeth, and an orthodontic ligation brace and a preshaped ligation wire piece for use in said method
US3759302A (en) * 1971-08-19 1973-09-18 Nat Res Dev Wire fixing device
US5004020A (en) * 1988-01-21 1991-04-02 Newtech Products, Inc. Wire twisting apparatus
US5125830A (en) * 1988-05-19 1992-06-30 Peter Reinhard Apparatus for affixing a ligature to braces of teeth

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7104287B1 (en) 2005-07-26 2006-09-12 Thomas Schmitz Wire-untwisting tool
US20090017420A1 (en) * 2006-10-04 2009-01-15 Saadallah Jabri Gingival Cord Applicator for Dental Crown Preparation
US20110017342A1 (en) * 2009-07-24 2011-01-27 Tyco Electronics Corporation Wire untwisting tool
CN101964495A (zh) * 2009-07-24 2011-02-02 泰科电子公司 电线解捻工具
US8555933B2 (en) * 2009-07-24 2013-10-15 Tyco Electronics Corporation Wire untwisting tool
CN101964495B (zh) * 2009-07-24 2015-03-04 泰科电子公司 电线解捻工具
CN103800084A (zh) * 2014-02-26 2014-05-21 青岛市妇女儿童医院 一种正畸结扎丝成型器
CN103800084B (zh) * 2014-02-26 2017-01-25 青岛市妇女儿童医院 一种正畸结扎丝成型器
KR20200028225A (ko) * 2018-09-06 2020-03-16 전북대학교산학협력단 치아 교정용 결찰기구
KR102097288B1 (ko) 2018-09-06 2020-04-06 전북대학교산학협력단 치아 교정용 결찰기구
CN113414316A (zh) * 2021-06-28 2021-09-21 成都飞机工业（集团）有限责任公司 一种便携式防错型电动打保险装置
CN113414316B (zh) * 2021-06-28 2022-06-14 成都飞机工业（集团）有限责任公司 一种便携式防错型电动打保险装置

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